Home / 13,547.52-18,681.84-8,237.16

Finding the Fourth Proportional to 13,547.52, 18,681.84 and 8,237.16

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Solution

The fourth proportional to 13,547.52, 18,681.84 and 8,237.16 is: 11,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.52 : 18,681.84 = 8,237.16 : x
  2. Step 2: Convert to fraction form
    13,547.52/18,681.84 = 8,237.16/x
  3. Step 3: Cross multiply
    13,547.52x = 18,681.84 × 8,237.16
  4. Step 4: Simplify right side
    13,547.52x = 153,885,305.17
  5. Step 5: Solve for x
    x = 153,885,305.17/13,547.52
  6. Step 6: Final answer
    x = 11,358.93

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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.