Home / 11,370.29-15,693.41-7,642.13

Finding the Fourth Proportional to 11,370.29, 15,693.41 and 7,642.13

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Solution

The fourth proportional to 11,370.29, 15,693.41 and 7,642.13 is: 10,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,370.29 : 15,693.41 = 7,642.13 : x
  2. Step 2: Convert to fraction form
    11,370.29/15,693.41 = 7,642.13/x
  3. Step 3: Cross multiply
    11,370.29x = 15,693.41 × 7,642.13
  4. Step 4: Simplify right side
    11,370.29x = 119,931,020.00
  5. Step 5: Solve for x
    x = 119,931,020.00/11,370.29
  6. Step 6: Final answer
    x = 10,547.76

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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.