Home / 15,461.10-21,336.15-8,746.70

Finding the Fourth Proportional to 15,461.10, 21,336.15 and 8,746.70

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Solution

The fourth proportional to 15,461.10, 21,336.15 and 8,746.70 is: 12,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.10 : 21,336.15 = 8,746.70 : x
  2. Step 2: Convert to fraction form
    15,461.10/21,336.15 = 8,746.70/x
  3. Step 3: Cross multiply
    15,461.10x = 21,336.15 × 8,746.70
  4. Step 4: Simplify right side
    15,461.10x = 186,620,796.52
  5. Step 5: Solve for x
    x = 186,620,796.52/15,461.10
  6. Step 6: Final answer
    x = 12,070.34

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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.