Home / 19,407.46-26,756.76-12,681.40

Finding the Fourth Proportional to 19,407.46, 26,756.76 and 12,681.40

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Solution

The fourth proportional to 19,407.46, 26,756.76 and 12,681.40 is: 17,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.46 : 26,756.76 = 12,681.40 : x
  2. Step 2: Convert to fraction form
    19,407.46/26,756.76 = 12,681.40/x
  3. Step 3: Cross multiply
    19,407.46x = 26,756.76 × 12,681.40
  4. Step 4: Simplify right side
    19,407.46x = 339,313,176.26
  5. Step 5: Solve for x
    x = 339,313,176.26/19,407.46
  6. Step 6: Final answer
    x = 17,483.65

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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.