Home / 13,302.40-19,918.40-10,657.60

Finding the Fourth Proportional to 13,302.40, 19,918.40 and 10,657.60

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Solution

The fourth proportional to 13,302.40, 19,918.40 and 10,657.60 is: 15,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.40 : 19,918.40 = 10,657.60 : x
  2. Step 2: Convert to fraction form
    13,302.40/19,918.40 = 10,657.60/x
  3. Step 3: Cross multiply
    13,302.40x = 19,918.40 × 10,657.60
  4. Step 4: Simplify right side
    13,302.40x = 212,282,339.84
  5. Step 5: Solve for x
    x = 212,282,339.84/13,302.40
  6. Step 6: Final answer
    x = 15,958.20

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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.