Home / 13,122.95-19,681.65-4,806.86

Finding the Fourth Proportional to 13,122.95, 19,681.65 and 4,806.86

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Solution

The fourth proportional to 13,122.95, 19,681.65 and 4,806.86 is: 7,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.95 : 19,681.65 = 4,806.86 : x
  2. Step 2: Convert to fraction form
    13,122.95/19,681.65 = 4,806.86/x
  3. Step 3: Cross multiply
    13,122.95x = 19,681.65 × 4,806.86
  4. Step 4: Simplify right side
    13,122.95x = 94,606,837.71
  5. Step 5: Solve for x
    x = 94,606,837.71/13,122.95
  6. Step 6: Final answer
    x = 7,209.27

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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.