Home / 13,386.02-18,472.41-7,417.32

Finding the Fourth Proportional to 13,386.02, 18,472.41 and 7,417.32

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Solution

The fourth proportional to 13,386.02, 18,472.41 and 7,417.32 is: 10,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.02 : 18,472.41 = 7,417.32 : x
  2. Step 2: Convert to fraction form
    13,386.02/18,472.41 = 7,417.32/x
  3. Step 3: Cross multiply
    13,386.02x = 18,472.41 × 7,417.32
  4. Step 4: Simplify right side
    13,386.02x = 137,015,776.14
  5. Step 5: Solve for x
    x = 137,015,776.14/13,386.02
  6. Step 6: Final answer
    x = 10,235.74

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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.