Home / 15,582.31-23,478.64-12,869.74

Finding the Fourth Proportional to 15,582.31, 23,478.64 and 12,869.74

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Solution

The fourth proportional to 15,582.31, 23,478.64 and 12,869.74 is: 19,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.31 : 23,478.64 = 12,869.74 : x
  2. Step 2: Convert to fraction form
    15,582.31/23,478.64 = 12,869.74/x
  3. Step 3: Cross multiply
    15,582.31x = 23,478.64 × 12,869.74
  4. Step 4: Simplify right side
    15,582.31x = 302,164,127.95
  5. Step 5: Solve for x
    x = 302,164,127.95/15,582.31
  6. Step 6: Final answer
    x = 19,391.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.