Home / 15,312.64-21,130.76-8,598.15

Finding the Fourth Proportional to 15,312.64, 21,130.76 and 8,598.15

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Solution

The fourth proportional to 15,312.64, 21,130.76 and 8,598.15 is: 11,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.64 : 21,130.76 = 8,598.15 : x
  2. Step 2: Convert to fraction form
    15,312.64/21,130.76 = 8,598.15/x
  3. Step 3: Cross multiply
    15,312.64x = 21,130.76 × 8,598.15
  4. Step 4: Simplify right side
    15,312.64x = 181,685,444.09
  5. Step 5: Solve for x
    x = 181,685,444.09/15,312.64
  6. Step 6: Final answer
    x = 11,865.06

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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.