Home / 13,210.32-18,228.48-7,545.84

Finding the Fourth Proportional to 13,210.32, 18,228.48 and 7,545.84

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Solution

The fourth proportional to 13,210.32, 18,228.48 and 7,545.84 is: 10,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.32 : 18,228.48 = 7,545.84 : x
  2. Step 2: Convert to fraction form
    13,210.32/18,228.48 = 7,545.84/x
  3. Step 3: Cross multiply
    13,210.32x = 18,228.48 × 7,545.84
  4. Step 4: Simplify right side
    13,210.32x = 137,549,193.52
  5. Step 5: Solve for x
    x = 137,549,193.52/13,210.32
  6. Step 6: Final answer
    x = 10,412.25

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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.