Home / 19,316.11-26,656.81-10,818.21

Finding the Fourth Proportional to 19,316.11, 26,656.81 and 10,818.21

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Solution

The fourth proportional to 19,316.11, 26,656.81 and 10,818.21 is: 14,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.11 : 26,656.81 = 10,818.21 : x
  2. Step 2: Convert to fraction form
    19,316.11/26,656.81 = 10,818.21/x
  3. Step 3: Cross multiply
    19,316.11x = 26,656.81 × 10,818.21
  4. Step 4: Simplify right side
    19,316.11x = 288,378,968.51
  5. Step 5: Solve for x
    x = 288,378,968.51/19,316.11
  6. Step 6: Final answer
    x = 14,929.45

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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.