Home / 15,038.18-20,752.34-8,323.40

Finding the Fourth Proportional to 15,038.18, 20,752.34 and 8,323.40

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Solution

The fourth proportional to 15,038.18, 20,752.34 and 8,323.40 is: 11,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.18 : 20,752.34 = 8,323.40 : x
  2. Step 2: Convert to fraction form
    15,038.18/20,752.34 = 8,323.40/x
  3. Step 3: Cross multiply
    15,038.18x = 20,752.34 × 8,323.40
  4. Step 4: Simplify right side
    15,038.18x = 172,730,026.76
  5. Step 5: Solve for x
    x = 172,730,026.76/15,038.18
  6. Step 6: Final answer
    x = 11,486.10

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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.