Home / 13,130.60-19,697.70-4,364.60

Finding the Fourth Proportional to 13,130.60, 19,697.70 and 4,364.60

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Solution

The fourth proportional to 13,130.60, 19,697.70 and 4,364.60 is: 6,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.60 : 19,697.70 = 4,364.60 : x
  2. Step 2: Convert to fraction form
    13,130.60/19,697.70 = 4,364.60/x
  3. Step 3: Cross multiply
    13,130.60x = 19,697.70 × 4,364.60
  4. Step 4: Simplify right side
    13,130.60x = 85,972,581.42
  5. Step 5: Solve for x
    x = 85,972,581.42/13,130.60
  6. Step 6: Final answer
    x = 6,547.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.