Home / 13,988.61-19,302.24-7,937.91

Finding the Fourth Proportional to 13,988.61, 19,302.24 and 7,937.91

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Solution

The fourth proportional to 13,988.61, 19,302.24 and 7,937.91 is: 10,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.61 : 19,302.24 = 7,937.91 : x
  2. Step 2: Convert to fraction form
    13,988.61/19,302.24 = 7,937.91/x
  3. Step 3: Cross multiply
    13,988.61x = 19,302.24 × 7,937.91
  4. Step 4: Simplify right side
    13,988.61x = 153,219,443.92
  5. Step 5: Solve for x
    x = 153,219,443.92/13,988.61
  6. Step 6: Final answer
    x = 10,953.16

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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.