Home / 15,572.04-21,477.52-9,907.71

Finding the Fourth Proportional to 15,572.04, 21,477.52 and 9,907.71

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Solution

The fourth proportional to 15,572.04, 21,477.52 and 9,907.71 is: 13,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.04 : 21,477.52 = 9,907.71 : x
  2. Step 2: Convert to fraction form
    15,572.04/21,477.52 = 9,907.71/x
  3. Step 3: Cross multiply
    15,572.04x = 21,477.52 × 9,907.71
  4. Step 4: Simplify right side
    15,572.04x = 212,793,039.68
  5. Step 5: Solve for x
    x = 212,793,039.68/15,572.04
  6. Step 6: Final answer
    x = 13,665.07

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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.