Home / 14,378.07-21,570.35-5,615.49

Finding the Fourth Proportional to 14,378.07, 21,570.35 and 5,615.49

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Solution

The fourth proportional to 14,378.07, 21,570.35 and 5,615.49 is: 8,424.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.07 : 21,570.35 = 5,615.49 : x
  2. Step 2: Convert to fraction form
    14,378.07/21,570.35 = 5,615.49/x
  3. Step 3: Cross multiply
    14,378.07x = 21,570.35 × 5,615.49
  4. Step 4: Simplify right side
    14,378.07x = 121,128,056.64
  5. Step 5: Solve for x
    x = 121,128,056.64/14,378.07
  6. Step 6: Final answer
    x = 8,424.50

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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.