Home / 15,397.04-21,247.91-8,323.46

Finding the Fourth Proportional to 15,397.04, 21,247.91 and 8,323.46

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Solution

The fourth proportional to 15,397.04, 21,247.91 and 8,323.46 is: 11,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.04 : 21,247.91 = 8,323.46 : x
  2. Step 2: Convert to fraction form
    15,397.04/21,247.91 = 8,323.46/x
  3. Step 3: Cross multiply
    15,397.04x = 21,247.91 × 8,323.46
  4. Step 4: Simplify right side
    15,397.04x = 176,855,981.11
  5. Step 5: Solve for x
    x = 176,855,981.11/15,397.04
  6. Step 6: Final answer
    x = 11,486.37

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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.