Home / 15,301.17-21,115.41-8,586.93

Finding the Fourth Proportional to 15,301.17, 21,115.41 and 8,586.93

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Solution

The fourth proportional to 15,301.17, 21,115.41 and 8,586.93 is: 11,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.17 : 21,115.41 = 8,586.93 : x
  2. Step 2: Convert to fraction form
    15,301.17/21,115.41 = 8,586.93/x
  3. Step 3: Cross multiply
    15,301.17x = 21,115.41 × 8,586.93
  4. Step 4: Simplify right side
    15,301.17x = 181,316,547.59
  5. Step 5: Solve for x
    x = 181,316,547.59/15,301.17
  6. Step 6: Final answer
    x = 11,849.85

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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.