Home / 15,330.04-21,151.56-9,359.53

Finding the Fourth Proportional to 15,330.04, 21,151.56 and 9,359.53

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Solution

The fourth proportional to 15,330.04, 21,151.56 and 9,359.53 is: 12,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330.04 : 21,151.56 = 9,359.53 : x
  2. Step 2: Convert to fraction form
    15,330.04/21,151.56 = 9,359.53/x
  3. Step 3: Cross multiply
    15,330.04x = 21,151.56 × 9,359.53
  4. Step 4: Simplify right side
    15,330.04x = 197,968,660.37
  5. Step 5: Solve for x
    x = 197,968,660.37/15,330.04
  6. Step 6: Final answer
    x = 12,913.77

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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.