Home / 10,371.16-14,312.55-5,655.45

Finding the Fourth Proportional to 10,371.16, 14,312.55 and 5,655.45

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Solution

The fourth proportional to 10,371.16, 14,312.55 and 5,655.45 is: 7,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.16 : 14,312.55 = 5,655.45 : x
  2. Step 2: Convert to fraction form
    10,371.16/14,312.55 = 5,655.45/x
  3. Step 3: Cross multiply
    10,371.16x = 14,312.55 × 5,655.45
  4. Step 4: Simplify right side
    10,371.16x = 80,943,833.20
  5. Step 5: Solve for x
    x = 80,943,833.20/10,371.16
  6. Step 6: Final answer
    x = 7,804.70

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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.