Home / 15,523.19-21,398.23-12,160.02

Finding the Fourth Proportional to 15,523.19, 21,398.23 and 12,160.02

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Solution

The fourth proportional to 15,523.19, 21,398.23 and 12,160.02 is: 16,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.19 : 21,398.23 = 12,160.02 : x
  2. Step 2: Convert to fraction form
    15,523.19/21,398.23 = 12,160.02/x
  3. Step 3: Cross multiply
    15,523.19x = 21,398.23 × 12,160.02
  4. Step 4: Simplify right side
    15,523.19x = 260,202,931.81
  5. Step 5: Solve for x
    x = 260,202,931.81/15,523.19
  6. Step 6: Final answer
    x = 16,762.20

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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.