Home / 19,368.95-26,729.13-10,985.45

Finding the Fourth Proportional to 19,368.95, 26,729.13 and 10,985.45

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Solution

The fourth proportional to 19,368.95, 26,729.13 and 10,985.45 is: 15,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.95 : 26,729.13 = 10,985.45 : x
  2. Step 2: Convert to fraction form
    19,368.95/26,729.13 = 10,985.45/x
  3. Step 3: Cross multiply
    19,368.95x = 26,729.13 × 10,985.45
  4. Step 4: Simplify right side
    19,368.95x = 293,631,387.51
  5. Step 5: Solve for x
    x = 293,631,387.51/19,368.95
  6. Step 6: Final answer
    x = 15,159.91

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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.