Home / 11,309.43-15,574.12-10,587.40

Finding the Fourth Proportional to 11,309.43, 15,574.12 and 10,587.40

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Solution

The fourth proportional to 11,309.43, 15,574.12 and 10,587.40 is: 14,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.43 : 15,574.12 = 10,587.40 : x
  2. Step 2: Convert to fraction form
    11,309.43/15,574.12 = 10,587.40/x
  3. Step 3: Cross multiply
    11,309.43x = 15,574.12 × 10,587.40
  4. Step 4: Simplify right side
    11,309.43x = 164,889,432.24
  5. Step 5: Solve for x
    x = 164,889,432.24/11,309.43
  6. Step 6: Final answer
    x = 14,579.81

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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.