Home / 13,281.52-18,328.35-7,313.07

Finding the Fourth Proportional to 13,281.52, 18,328.35 and 7,313.07

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Solution

The fourth proportional to 13,281.52, 18,328.35 and 7,313.07 is: 10,091.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.52 : 18,328.35 = 7,313.07 : x
  2. Step 2: Convert to fraction form
    13,281.52/18,328.35 = 7,313.07/x
  3. Step 3: Cross multiply
    13,281.52x = 18,328.35 × 7,313.07
  4. Step 4: Simplify right side
    13,281.52x = 134,036,506.53
  5. Step 5: Solve for x
    x = 134,036,506.53/13,281.52
  6. Step 6: Final answer
    x = 10,091.96

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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.