Home / 15,134,128.40-20,885,541-8,259,054.32

Finding the Fourth Proportional to 15,134,128.40, 20,885,541 and 8,259,054.32

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Solution

The fourth proportional to 15,134,128.40, 20,885,541 and 8,259,054.32 is: 11,397,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134,128.40 : 20,885,541 = 8,259,054.32 : x
  2. Step 2: Convert to fraction form
    15,134,128.40/20,885,541 = 8,259,054.32/x
  3. Step 3: Cross multiply
    15,134,128.40x = 20,885,541 × 8,259,054.32
  4. Step 4: Simplify right side
    15,134,128.40x = 172,494,817,621,587.12
  5. Step 5: Solve for x
    x = 172,494,817,621,587.12/15,134,128.40
  6. Step 6: Final answer
    x = 11,397,737.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.