Home / 13,303.32-18,355.18-8,456.28

Finding the Fourth Proportional to 13,303.32, 18,355.18 and 8,456.28

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Solution

The fourth proportional to 13,303.32, 18,355.18 and 8,456.28 is: 11,667.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.32 : 18,355.18 = 8,456.28 : x
  2. Step 2: Convert to fraction form
    13,303.32/18,355.18 = 8,456.28/x
  3. Step 3: Cross multiply
    13,303.32x = 18,355.18 × 8,456.28
  4. Step 4: Simplify right side
    13,303.32x = 155,216,541.53
  5. Step 5: Solve for x
    x = 155,216,541.53/13,303.32
  6. Step 6: Final answer
    x = 11,667.50

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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.