Home / 15,312.15-21,130.07-8,597.66

Finding the Fourth Proportional to 15,312.15, 21,130.07 and 8,597.66

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Solution

The fourth proportional to 15,312.15, 21,130.07 and 8,597.66 is: 11,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.15 : 21,130.07 = 8,597.66 : x
  2. Step 2: Convert to fraction form
    15,312.15/21,130.07 = 8,597.66/x
  3. Step 3: Cross multiply
    15,312.15x = 21,130.07 × 8,597.66
  4. Step 4: Simplify right side
    15,312.15x = 181,669,009.00
  5. Step 5: Solve for x
    x = 181,669,009.00/15,312.15
  6. Step 6: Final answer
    x = 11,864.37

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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.