Home / 13,346.16-18,417.60-7,378.08

Finding the Fourth Proportional to 13,346.16, 18,417.60 and 7,378.08

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Solution

The fourth proportional to 13,346.16, 18,417.60 and 7,378.08 is: 10,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.16 : 18,417.60 = 7,378.08 : x
  2. Step 2: Convert to fraction form
    13,346.16/18,417.60 = 7,378.08/x
  3. Step 3: Cross multiply
    13,346.16x = 18,417.60 × 7,378.08
  4. Step 4: Simplify right side
    13,346.16x = 135,886,526.21
  5. Step 5: Solve for x
    x = 135,886,526.21/13,346.16
  6. Step 6: Final answer
    x = 10,181.69

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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.