Home / 10,013.91-13,818.47-5,537.40

Finding the Fourth Proportional to 10,013.91, 13,818.47 and 5,537.40

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Solution

The fourth proportional to 10,013.91, 13,818.47 and 5,537.40 is: 7,641.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.91 : 13,818.47 = 5,537.40 : x
  2. Step 2: Convert to fraction form
    10,013.91/13,818.47 = 5,537.40/x
  3. Step 3: Cross multiply
    10,013.91x = 13,818.47 × 5,537.40
  4. Step 4: Simplify right side
    10,013.91x = 76,518,368.09
  5. Step 5: Solve for x
    x = 76,518,368.09/10,013.91
  6. Step 6: Final answer
    x = 7,641.21

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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.