Home / 13,417.61-18,515.47-7,448.93

Finding the Fourth Proportional to 13,417.61, 18,515.47 and 7,448.93

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Solution

The fourth proportional to 13,417.61, 18,515.47 and 7,448.93 is: 10,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.61 : 18,515.47 = 7,448.93 : x
  2. Step 2: Convert to fraction form
    13,417.61/18,515.47 = 7,448.93/x
  3. Step 3: Cross multiply
    13,417.61x = 18,515.47 × 7,448.93
  4. Step 4: Simplify right side
    13,417.61x = 137,920,439.95
  5. Step 5: Solve for x
    x = 137,920,439.95/13,417.61
  6. Step 6: Final answer
    x = 10,279.06

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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.