Home / 10,397.21-14,348.11-5,681.49

Finding the Fourth Proportional to 10,397.21, 14,348.11 and 5,681.49

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Solution

The fourth proportional to 10,397.21, 14,348.11 and 5,681.49 is: 7,840.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,397.21 : 14,348.11 = 5,681.49 : x
  2. Step 2: Convert to fraction form
    10,397.21/14,348.11 = 5,681.49/x
  3. Step 3: Cross multiply
    10,397.21x = 14,348.11 × 5,681.49
  4. Step 4: Simplify right side
    10,397.21x = 81,518,643.48
  5. Step 5: Solve for x
    x = 81,518,643.48/10,397.21
  6. Step 6: Final answer
    x = 7,840.43

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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.